Firearm



WILLIAn H. DAVENPORT, or NoRwioH, ooNNEori'oU'r.

FIREARM.

SPECIFICATION forming part of Letters Patent No. 624,187, dated May 2,1899'.

Application filed December 30, 1898. Serial No. 700,745. (No model.)

T0 a/ZZ whom t may concern,.-

Be it known that I, WILLIAM H. DAVEN- PORT, a citizen of the UnitedStates, residing at Norwich, in the county of New London, State ofConnecticut, have invented certain new and useful ImprovementsinFirearms, of which the following is a full, clear, and exactdescription.

This invention is in firearms, and relates particularly to the extractormechanism thereof, my purpose being to provide simple andautomatically-acting mechanism applicable particularly to riiies havinga vertically-movable breech-block. Y

The essential feature of my invention consists in certain locking andreleasing mechanism for the so-called extractor-rod, which lockingmechanism when the breech-block is slid downward to a point belowthebore of the barrel is released and said ejector-rod then shootsrearward and discharges the shell from the arm with considerable force.-'lhe return or upward movement of the breechblock (caused by the upwardrocking of the guard-lever) causes the several elements just referred toto return automatically to'their normal positions.

To assist in explaining myinventioml have provided the accompanying`sheet of drawings, which serves to illustrate the same and portions ofthe arm immediately related thereto, as follows: j

Figure 1 shows, partly in elevation and partly in section, a portion ofan arm tted up withmynewly-inventedimprovements. Fig. 2 is a viewsimilar to Fig. l, illustrating the operation of my said invention. Fig.3 is an under side view of the breech end portion of the barrel of thearm shown in Figs. l and 2.

Referring to the drawings, the letter a denotes the frame of the arm,and b 'the barrel, said frame and barrel being assembled in the usualmanner.

Letter c denotes the guard-lever, hung on the pin c', located in frame aand connected by a link CZ with the breech-block e, which latter iscaused to travel with a verticallyreciprocating motion in the frame eupon the rocking of the guard-lever c.

Letters f and f denote, respectively, the hammer and trigger of the arm,and g the ring-pin thereof, located in thebreech-block e, the saidseveral elements just referred to being assembled and operating in theusual manner.

The ejector-rod of the arm is denoted by the reference-letter hand islocated in a cham ber b', provided in the breech end of the bar# rel bbeneath and parallel with the bore there` of. The head 7i.' of the rod hforms, when the said rod is in its inner position, 'aportionl of the endof the barrel and is adapted to engage the rim of the cartridge-shell A,the said rim being received in a circular recess b2, formed bycounterboring the said barrel end and the rod-head h', seated therein.

The reference-letter 7c denotes a spring located in the chamber ybbetween the inner end wall of said chamber and the adjacent end of therod h, which spring serves under proper conditions to force outward therod h, the latter carrying` with it and ejecting from the rii'le thecartridge-shell, if there bea shell in the barrel.

To limit the travel of the rod 7L and to prevent the same from beingforced entirely from the chamber b by spring 7c, a pin m is provided,crossing at right angles the chamber b and a notch h2 of the rod h, saidpin being adapted to engage the end walls of the notch to limit thetravel of rod h in either direction.

Somewhat in advance of the breech-block e the frame ct is provided witha verticallyextending hole n, connecting the frame-opening in which thebarrel b is located and the open space ct', adjacent to the hinge-pin c'of the lever c. Located in the hole n is a bolt 0, having ashouldered-down portion o to receive a springp, whose opposite endsabut, respectively, the main portion of the bolt o and a nut p', screwedinto the frame ot and serving to close the lower end of the hole n. Saidnut also provides a substantial bearing for the shouldered-down portionof the bolt 0, which latter'projects therethrough and bears on its lowerend an arm s, that extends toward the breech-block e and enters anopening e therein, within which opening the upper end of the link d ispivoted. The upper end of bolt ois beveled, as at o', and to receivesaid beveled end a notch b3 is provided in the under side of barrelb,registering with the said upper end of the bolt. Located in theejectorrod h, adjacent to the head h thereof, is a IOO notch h3, thatregisters with and receives the upper end of bolt o when the the saidrod h is in its inner position. Bolt ois held normally in the saidupward position by the spring p.

It will be seen by reference to Fig. l of the drawings that when thevarious elements are in the positions just described should lever c bemanipulated to cause the block` e to travel downward until clear of theeX- tractor-head h the extractor-rod h would still be retained in itsinner position by the bolt o,

whose upper end engages the notch h3 in the.

said rod h, were it not for the arm s, which just before block e reachesthe point j ust mentioned is engaged by the upper wall e2 of the openinge in the block e, after which further downward movement of said blockcarries with it the bolt o to withdraw its upper end from the notch h3of the rod 7L at the time the block e, which has been engaging the headh of the rod h, passes from contact therewith. Spring 7c is now free toexpand and force outward the rod h, the latter carrying with it the.cartridge-shell A, which is ejected with such force as to throw itentirely clear from the arm. The lever c has now been rocked to itslowest position, and upon its return to its normal position the block iscorrespondingly carried upward, the beveled face e4 thereof en-yengaging the rod h and forcing it into its former normal or closedposition. During the last-mentioned inward travel of extractorrod h thesaid rod engages and rides upon the upper end of bolt 0 until its notchh3 registers with the said upper end, when the bolt o is forcedthereinto by the spring p, and the locking of rod h is again eected.

' My described invention improves materially the ejector mechanismwithout complicating the same, and firearms may be fitted up therewithat a very small cost.

Having thus described my invention, I claim l. In combination, in anarm, a barrel, a frame, a sliding breech-block as set forth, aspring-pressed ejector and mechanism for retaining said ejector in itsnormal, closed position; said retaining mechanism being adapted to beengaged by the breech-block on the downward movement of the latter,substantially as and for the purpose specified.

2. In an arm'of the class referred to, in combination, a barrel, aspring-pressed ejector having a notch haas set forth, a bolt adapted toengage said notch, and a sliding breechblock adapte-d to engage saidbolt, substantially as specified.

Signed at Norwich, Connecticut, this 17th day of December, 1898.

WILLIAM H. DAVENPORT.

Witnesses:

ALONZO M. LUTHER, FRANK H. ALLEN.

